use std::io::BufWriter;
use std::path::{Path, PathBuf};
+use rustc_span::*;
use syntax::ast::{self, Attribute, NodeId, PatKind, DUMMY_NODE_ID};
use syntax::print::pprust;
use syntax::print::pprust::{param_to_string, ty_to_string};
use syntax::source_map::Spanned;
use syntax::util::comments::strip_doc_comment_decoration;
use syntax::visit::{self, Visitor};
-use syntax_pos::*;
use dump_visitor::DumpVisitor;
use span_utils::SpanUtils;